The auto-config for handler classes seems not to work (manual config is required)

[Moongazer]

The extension CompilerPass sets a configuration to tag MessageHandlerInterface classes with messenger.message_handler:

$container->registerForAutoconfiguration(MessageHandlerInterface::class)->addTag('messenger.message_handler');

But just implementing the interface for a custom handler class seems not be enough, the handler is never called and all messages are rejected. Only if we manually add the handler-class with this tag to our Services.yaml the handler is executed:

services:
  _defaults:
    autowire: true
    autoconfigure: true
    public: false

  Vendor\MyExt\:
    resource: '../Classes/*'
    exclude: '../Classes/Domain/Model/*'

  Vendor\MyExt\Messenger\Handler\MyJobHandler:
    tags:
      - name: 'messenger.message_handler'

Is this expected behaviour or is here missing something? Strange is, that in BOTH cases (with and without manual configuration), the tag never shows up in the cached DI file di/DependencyInjectionContainer_4a...2a.php: after clearing the cache, searching for messenger.message_handler return 0 results.

[sabbelasichon]

@Moongazer I have created another package wich integrates Symfony Messenger seamlessly in TYPO3. We are using it in a really big TYPO3 Application and it works quite well.
I have talked to @svewap (the creator of this package) and for him it is fine to mention my package here.
https://github.com/sabbelasichon/t3_messenger

I would be happy to join forces and make improvements together to bring this nice feature / component to a broader audience.

[sabbelasichon]

@Moongazer The described problem here doesn´t exist in my package. It works. You can even use PHP Attributes if you are using PHP 8.1

[Moongazer]

@sabbelasichon Thanks for the hint! It depends a bit how fast I will be able to upgrade to v12, because than the Messenger is available as core-feature. If too many of my used extensions are not v12 ready mid of this year, I'll consider to give t3_messenger a shot too 👍🏼

[sabbelasichon]

Are you sure that the Messenger Integration in the core is feature complete?

[Moongazer]

Not sure, I think I read or heard somewhere that its not feature complete, but can't find the resource right now for details, nor the patch on Gerrit.

This article says it uses a "basic implementation", whatever that means.
This post also has no further details.

Do you know anything more?

[sabbelasichon]

I don't really know. But as far as i can see, i would consider it not feature complete out of the box. But i will have to check when we switch to version 12